Hirshberg, the founder of Stonyfield Farms, describes his struggle with how he wanted to go about creating a more sustainable world, and why he decided business was the ultimate way to evoke that change:

"If he had stayed in academia, he reasoned, he could work to create models until he was '70 years old and maybe explain 65% of the time what the probability is and that a problem exists. [Yet] he wouldn't have done a damn thing about actually solving the problem."